Accurately assessing biochar’s durability in soil is essential for credible carbon removal. This white paper challenges recent comparisons to inertinite, a coal component, highlighting key scientific flaws and offering guidance on conservative, evidence-based crediting.

Key takeaways:

• Inertinite comparisons overlook critical differences between coal and biochar in soil.

• Current protocols vary widely, creating a risk of overcrediting carbon removal.

• Conservative, evidence-based methods are essential for credible biochar carbon removal.